Polanco (hamstring) will start at second base and bat seventh in Wednesday's game against the Yankees.

Polanco missed more than a week with a right hamstring injury, though he has been available off the bench for a couple days. The switch-hitter is sporting a disappointing .192/.298/.308 in his first season with the Mariners.

Mateo is out of the lineup for Wednesday's game against the Cardinals, Jake Rill of MLB.com reports.

After playing the final three innings of Tuesday's suspended game earlier Wednesday and finishing 1-for-3 with an RBI double in Baltimore's 3-1 loss, Mateo will get a breather for the regularly scheduled game. Jordan Westburg will shift over from third base and man the keystone in place of Mateo, whose streak of seven consecutive starts comes to an end.

Guillorme is out of the lineup for Wednesday's game against the Astros, Rhett Bollinger of MLB.com reports.

After he was acquired from Atlanta on May 9, Guillorme picked up starts in five of his first seven games with the Angels. He seems to have since moved into a utility role with Luis Rengifo returning from the injured list and taking on everyday duties at third base and with prospect Kyren Paris getting called up from Triple-A Salt Lake to serve as the team's main option at second base. Paris is hitting just .111 since his promotion, so it may not be long before the Angels pull the plug on the rookie and give Guillorme more playing time at the keystone.

Toro went 1-for-4 with a solo home run in Tuesday's 5-4 win over the Rockies.

Toro's bat was silent until the eighth inning when he sent out a home run to right field to give the A's their first lead of the night. He's racked up seven hits over his last five games and leads the majors with 28 hits in the month of May. Since April 26, Toro is slashing .362/.406/.553 with three homers, 10 RBI, 17 runs and a 4:16 BB:K in 101 plate appearances.

Massey is out of the lineup for Wednesday's game against the Tigers.

With ace southpaw Tarik Skubal on the hill for the Tigers, the Royals will stock up on extra right-handed bats in the series finale. The lefty-hitting Massey will thus cede his spot at the keystone to the right-handed-hitting Garrett Hampson.

Frazier is out of the lineup for Wednesday's game against the Tigers.

Frazier has now started just twice in the Royals' last six games and seems to have transitioned into a full-time utility role. The 32-year-old has produced a career-worst .547 OPS over 109 plate appearances on the season.

Lowe went 0-for-4 with two strikeouts Tuesday against the Red Sox.

Lowe was activated from the injured list Monday and made his second straight start at second base. He's gone hitless across seven plate appearances while striking out three times. Lowe has hit third and fourth in the two contests against right-handed pitching.

Rengifo went 2-for-5 with a two-run homer and three RBI in Tuesday's 6-5 loss to the Astros.

Rengifo got the Angels on the board quickly with a two-run blast off Christian Javier in the opening frame. He later plated a third run in the fourth on a base knock. He's now tallied at least one hit in 11 of his last 12 games, which includes 13 hits and a .371 average over his last eight games. He's regularly been hitting first or second since coming back from the injured list last week and is now slashing ,316/.366/.474 with three homers, 15 RBI, 16 runs and an 8:18 BB:K in 124 plate appearances.

Keith went 3-for-4 with a double and an RBI in Tuesday's 10-3 loss to the Royals.

While the Tigers struggled as a team, Keith continued to roll. The rookie is batting a robust .441 over his last 10 contests, and he's recorded three or more hits in a game three times already this month. Keith came into May batting just .154 but has pushed that figure to .230, and the 22-year-old has a prospect pedigree that suggests he'll be able to sustain this level of play.

The Yankees transferred Vivas' (undisclosed) rehab assignment Tuesday from Single-A Tampa to High-A Hudson Valley.

Vivas remains on Triple-A Scranton/Wilkes-Barre's 7-day injured list with an unspecified injury, which has prevented him from playing with the affiliate since April 24. The infielder appears to be closing in on a return to the Triple-A club, however, after going 1-for-11 with three walks and a stolen base across his four rehab appearances with Tampa last week.